Heath Heathkit SB-104A, Manual

Page: 171 / 204

E E
CABLE HARNESS
( ) Refer to Pictorial 12-20 and form the cable harness as
shown. Note that each breakout has a number (as in
the wiring harness) and that each shielded cable has an
ual number label. BO#1 is at the end of the
which has the violet and the blue wires.
ictorial 12-21 (Illustration Booklet, Page 1 1 ) f o r
ing steps.
harness against the bottom of the
sh all the seven colored wires at B0#6 through
rommet BC.
At BO#7 push shielded leads 3 and 10 through
grommet BA, and leads 1, 2, 14, 15, 16, and 17
through grommet BB.S
( ) At
BO#1, push shielded leads 1, 4, 6, 7, 10, 1 1 , and
1 through chassis cutout AC (lead 6 is 1 1 long).
ielded leads 8 and 9 and the two colored wires are
t iushed through the cutout.
nnect some of the wires as follows:
ad 8 to R2 lug 2 (S-1) and the shield wires to RR2 lug
(NS). Use 5/8" of small sleeving on the shield wire.
( ) Lead 9 to R2 lug 3 (NS) and the shield wires to RR2 lug
1 (NS). Use 5/8" of small sleeving on the shield wire.
Detail 12-21A
er to Detail 12-214 and prepare an 1 1 shielded
c le.
nnect one end of the prepared cable to R2 lug 3
-2) and the shield wires to R2 lug 1 (S4). Use 5/8"
f small sleeving on the shield wire. Push the other end
of this cable through chassis cutout AC.
Heter to Detail 12-218 and twist lugs 3 and 4 of S3,
section F, 1/4 turn so the holes in the lugs are aligned.
Remove insulation from the violet and the blue wires
coming from BO#1 so each has 3/4" of bare wire
exposed,
Page 1-169
two colored wires to switch S3 section F as
h the violet wire through lug 3 (S-2) to lug 4 (S-1).
may be helpful to flatten the wire slightly so it will
o through the switch lugs easily.
Push the blue wire through lug 5 (S-2) to lug 6 (S-1).
. Connect three of the leads as follows:
to B20 (S1) and the shield wires to B22
ad 12 to B18 (S-1) and the shield wires to solder lug
X (NS).
ead 9 to B15 (S-1) and the shield wires to solder lug
X
(NS).
B O #' . Connect the leads as follows:
Lead 5 to C24 (S-1) and the shield wires to C23
(s-1/2).
Lead 13 to E24 (S-1) and the shield wires to E22
(s-1/2).
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TW 151
«lid / 4 1 u R N
if
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Detail 12-218
. Connect three of the leads as follows:
Lead 2 to F21 (NS) and the shield wires to F23 (NS).
Lead 4 to F21 (S-2) and the shield wires to F23
(S-2/4).
Lead 7 to F16 (S-1) and the shield wires to solder lug
AZ (NS).
. Connect the leads as follows:
Lead 17 to F15 (S-2) and the shield wires to F18
(s-1/2).
Lead 3 to G4 (S-1/3). Place a smal I ferrite bead on the
shield wire. Then connect the shield wire to G3
(S-1/3).